In his theory, money supply is controlled by the central bank and is an exogenous variable with no interest rate elasticity. At this point, monetary demand depends on people's psychological "liquidity preference". The CryptoKitties, priced in too much money, almost caused a network outage, becoming the cutest incentive to expand trade throughput and liquidity. The European central bank's interest rate and previous decision to taper its bond purchases have been stable: capfafenbach Attract capital and people It is also worth noting that in 1985, the financial accounting standards board released the concept of income from the concept framework (SFAC)NO. 6. In 1989, the international accounting standards board's framework for preparing and providing financial statements made clear that benefits also included unrealized gains. In 1997, FASB's FASB N0.130 required a full return; In 1998, IASC's IAS NO.1 required the preparation of an equity change table, a comprehensive income statement, including the benefit of reflecting corporate assets. In terms of the importance of the plan, the plan can be divided into strategic planning and operational planning.